IP Library › Assignment 020654/0001
Patent Assignment
Reel/Frame 020654/0001

Patent Assignment and License Agreement

Recorded: 2008-03-14 Pages: 10
Assignors
SHELL OIL COMPANY
Executed: 2007-08-30
Assignee
AT-BALANCE AMERICAS LLC
11767 KATY FREEWAY, SUITE 1030, HOUSTON, TEXAS, 77079
Covered Property (1)
Dynamic Annular Pressure Control Apparatus and Method
Patent: 7,185,719 →
Application: 10/775,425 →
Publication: US 2004/0178003
Related Assignments (2)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest May 24, 2004
From: RIET, EGBERT JAN VAN
To: SHELL OIL COMPANY
Reel/Frame 015356/0152 →
Merger Jan 25, 2013
From: AT-BALANCE AMERICAS LLC
To: SMITH INTERNATIONAL, INC.
Reel/Frame 029696/0350 →